Overheating takes place when going uphill only. Air con was on each time. Replaced rad, head gaskets, thermostat, water pump, aux drive belt. Cylinderhead has been skimmed and head checked.
Car checked at speed on motorway. No problem.
Does not hills with aircon on.
Any ideas?

Peter Bruce, July 2008

Expansion bottle pressure cap? You seem to have covered most things. Do you lose water, or is the gauge just reading high? Check that the electric fan(s) are in order.

John, July 2008